.container {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width:100%;
    height: 100%;
    background-color: #F4F5F7;
}
.head{
    display: flex;
    flex-direction: row;
    font-size: 25px;
    color: black;
    width: 100%;
    height: 70px;
    background-color: yellow;
    padding-left: 20px;
}
.list{
    width: 100%;
    height: 100%;
/*list设置为多列模式*/
    columns: 1;
}
.course-item{
    width: 100%;
    flex-direction:row;
    background-color: white;
    border-radius: 10px;
    border: 1px solid #ddd;
    margin: 10px;
}
.title {
    display: flex;
    flex-direction: column;
    padding-left: 20px;
}


